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drm/rockchip: Add implicit fencing support for planes

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Render like lima will attach a fence to the framebuffer dma_buf,
so the display driver should wait for it to finish before showing
the framebufferto prevent tearing.

Generally tested on rk3188, rk3288, rk3328 and rk3399 and
together with an actual lima-based kmscube on rk3188 and rk3328.

Suggested-by: Qiang Yu <yuq825@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181130102449.6430-1-heiko@sntech.de
This commit is contained in:
Heiko Stuebner 2018-11-30 11:24:49 +01:00
parent cad5290a2f
commit 63d5e06aa3
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/rockchip/rockchip_drm_vop.c
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@ -18,6 +18,7 @@
#include <drm/drm_crtc.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_flip_work.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_plane_helper.h>
#ifdef CONFIG_DRM_ANALOGIX_DP
#include <drm/bridge/analogix_dp.h>
@ -823,6 +824,7 @@ static const struct drm_plane_helper_funcs plane_helper_funcs = {
.atomic_check = vop_plane_atomic_check,
.atomic_update = vop_plane_atomic_update,
.atomic_disable = vop_plane_atomic_disable,
.prepare_fb = drm_gem_fb_prepare_fb,
};
static const struct drm_plane_funcs vop_plane_funcs = {